fixing type-punning gcc421 compiler warning (on Linux)
fixing type-punning gcc421 compiler warning (on Linux)



git-svn-id: c3edda122e248ef33995da003806c930f62b9468@1270 31904243-a364-42ac-a3db-9305396518ba

mcanthony/oiio,mcanthony/oiio,lgritz/oiio,OpenImageIO/oiio,micler/oiio,sambler/oiio,scott-wilson/oiio,jeremyselan/oiio,OpenImageIO/oiio,bdeluca/oiio,jeremyselan/oiio,mcanthony/oiio,sambler/oiio,lgritz/oiio,micler/oiio,bdeluca/oiio,scott-wilson/oiio,scott-wilson/oiio,cwilling/oiio,YangYangTL/oiio,jeremyselan/oiio,scott-wilson/oiio,sambler/oiio,YangYangTL/oiio,YangYangTL/oiio,cwilling/oiio,lgritz/oiio,sambler/oiio,micler/oiio,OpenImageIO/oiio,YangYangTL/oiio,bdeluca/oiio,micler/oiio,OpenImageIO/oiio,cwilling/oiio,bdeluca/oiio,lgritz/oiio,mcanthony/oiio,cwilling/oiio